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The RQ-3 DarkStar (known as Tier III- or "Tier three minus" during development) is an unmanned aerial vehicle (UAV). Its first flight was on March 29, 1996. The Department of Defense terminated DarkStar in January 1999, after determining the UAV was not aerodynamically stable and was not meeting cost and performance objectives. [1]
The Lockheed Martin SR-72, colloquially referred to as "Son of Blackbird", [1] is an American hypersonic UAV concept intended for intelligence, surveillance and reconnaissance (ISR) proposed privately in 2013 by Lockheed Martin as a successor to the retired Lockheed SR-71 Blackbird. In 2018, company executives said an SR-72 test vehicle could ...
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Complementary to the Tier III- aircraft. Role currently filled by the RQ-4 Global Hawk. Tier III-: High altitude, long endurance low-observable UAV. Same parameters as, and complementary to, the Tier II+ aircraft. The RQ-3 DarkStar was originally intended to fulfill this role before it was "terminated". Role now filled by RQ-170 Sentinel.
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The Northrop Grumman RQ-180 is an American stealth unmanned aerial vehicle (UAV) surveillance aircraft intended for contested airspace. As of 2019 [update] , there had been no images or statements released, but growing evidence points to the existence of the RQ-180 and its use in regular front-line service. [1]
Polecat is a twin engine, swept wing and designed very much like a miniature B-2. Dark Star is single engined and straightwinged. Development of Polecat didn't begin until mid-2004, after the "mature" RQ-3 was supposed to have been flown in Iraq.
The RQ-7 Shadow is the result of a continued US Army search for an effective battlefield UAS after the cancellation of the Alliant RQ-6 Outrider aircraft. AAI Corporation followed up their RQ-2 Pioneer with the Shadow 200, a similar, more refined UAS. In late 1999, the army selected the Shadow 200 to fill the tactical UAS requirement ...